Gun ownership says, "I need, want and deserve to control the power of instant death." This is true whether your possession is legal or not.
Because United States citizens are afforded the unusual constitutional protection of their right to control the power of instant death, they are free to arm themselves against whatever need to commit homicide they might anticipate. For instance, some unsanctioned possessor of the power of instant death, or an attacker bent on causing them pain might confront them. Second Amendment fans also like to point out that the federal government might get too big for its boots and need to be shot out of them. What if fascists or commies took over and started rounding up undesirables? Ha! I'd like to see them try while I've got old Betsy in my warm, live hands. We have a moral obligation to go down fighting.
Then there are the undesirables themselves. They could form groups and start disturbing the peace. Armed bands could begin to roam the landscape, falling on the homesteads of staunch normal people to raid and pillage. This could happen. It could. Combine the epidemic of homelessness with desperate ideologies constantly recruiting and it's only a matter of time before someone figures out how to radicalize a whole bunch of hobos and issue them assault weapons. Why has no one thought of this before?
And what if Muslims try to impose their Sharia law and displace the Biblical law that good Christians want to place over us?
I don't debate any of the arguments in favor of gun ownership. Constitution says you can have them. Go get some. An apocalypse has to hit sometime. And personal crises won't arrive on a known schedule. If you want to be able to blast an attacker back against the far wall with a rain of hot lead, you have to have the tools in reach.
Let's just be honest. Get tee shirts, bumper stickers, embroidered jackets and other regalia that say, "I need, want, and deserve to control the power of instant death." Make sure that is in the front of everyone's mind when they discuss guns and gun control. That's all that really needs to be in anyone's mind when considering firearms. Sure, you can shoot for sport and for fun, perforating paper and plinking at cans and bottles, but that's not why humans invented guns. Guns are the power of instant death. And that is a fundamental human right.